Up and Down: DiamondRock, Sucampo, American Capital

*DiamondRock Hospitality (DRH) was last week's biggest gainer,with shares rising 28 percent, to close Friday at $4.77. They hit a 52-week low of $2.30 last month, and they're still down about 72 percent in the past year.

*Shares of W.R. Grace(GRA) of Columbia rose 20 percent last week, closing Friday at $6.16. They're still down 74 percent in the past three months and 77 percent in the past year. The company is paying $140 million to settle charges related to its use of a product containing asbestos.

*Online Resources (ORCC) lost 14 percent in the past week, closing Friday at $3.63. They hit a 52-week low of $1.80 last month and are still down 64 percent in the past year.

*The top loser of last week was Sucampo Pharmaceuticals (SCMP) of Bethesda, which dipped below $4 a share on Friday before closing at $4.15. Shares lost 32 percent last week, leaving them down 72 percent in the past year.

*Shares of Bethesda-based American Capital (ACAS) hit a 52-week low of $2.97 on Friday, before rising a bit to close out the week at $3.15 a share. The private-equity company tops the list of one-year losers with shares down 90 percent in that time. It said last week that it was cutting about 19 percent of its workforce.

*After climbing 43 percent the previous week, Sallie Mae(SLM) lost 17 percent last week, closing at $7.60. Shares are still 18 percent higher than before those two weeks, though they're 79 percent lower than they were a year ago.